CN116292978A - An integrated multi-way water valve - Google Patents

Abstract

The invention discloses an integrated multi-pass water valve, which comprises a valve body, a valve core, a valve cover, an end face bearing and an elastic member. It is located between the valve core and the valve cover. Compared with the method of sealingly connecting the spool and the bonnet in the prior art, the present invention has a longer service life of the connection structure between the spool and the bonnet by setting the end face bearing, and the elastic member can apply pressure for a long time , so that the end bearing is always in contact with the spool, and the driving torque of the spool can be effectively reduced when the spool is driven.

Description

An integrated multi-way water valve

technical field

The invention relates to the technical field of valves, in particular to an integrated multi-way water valve.

Background technique

An existing valve includes a valve body, a valve core rotatably arranged in the valve body, and a valve cover adapted to the top surface of the valve body, wherein the rotation axis of the valve core runs through the valve cover, and the rotation axis of the valve core and the valve core body There is a sealing part arranged between the bonnet and the valve core and the bonnet with a dynamic seal. The service life of the sealing part arranged in this way is short, and the sealing performance will decrease after being durable, which will affect the service life and sealing performance of the multi-way valve; secondly , The friction between the spool and the dynamic sealing part is large, which makes the driving torque of the multi-way valve spool relatively large, and requires higher requirements for the design and manufacture of the driving mechanism.

Therefore, the present invention proposes an integrated multi-way water valve with longer service life, better sealing performance and smaller driving torque.

Contents of the invention

Aiming at the deficiencies of the prior art, the object of the present invention is to provide an integrated multi-way water valve.

In order to achieve the above object, the present invention adopts the following technical solutions:

An integrated multi-way water valve, including a valve body, a valve core, a valve cover, an end face bearing and an elastic member, the valve core is rotatably arranged in the valve body, the valve cover is placed on the top surface of the valve body, and the end face bearing is arranged on the valve body Between the core and the valve cover, an elastic member is arranged between the end bearing and the valve cover, and the elastic member provides elastic force to press the end bearing.

Further, the end face bearing includes an upper ring body installed on the lower end face of the bonnet, a lower ring body installed on the top surface of the seat valve core, and rolling elements arranged between the upper ring body and the lower ring body, the upper ring body The body and the lower ring body are arranged coaxially.

Further, an elastic member is provided between the end bearing and the valve cover, and the elastic member provides elastic force to press the end bearing.

Further, the valve core includes a cylindrical valve core body and a rotating shaft protruding from the middle of the end surface of the valve core body, the rotating shaft passes through the valve cover and extends outward, and a Second seal.

Further, the spool body includes opposite first and second axial end faces, the rotating shaft protrudes from the middle of the first axial end face, and the end face bearing and elastic member are arranged on the first axial end face Between the valve cover and the valve cover, the upper ring body surrounds the rotating shaft, the lower ring body is sleeved on the rotating shaft and connected to the first axial end surface, and a first axial end surface is provided between the second axial end surface and the valve body. Seals.

Further, the valve body is in the shape of a hollow cylinder with an open end, a plurality of outer ports are opened on the lower end surface of the valve body, a plurality of inner ports are opened on the second axial end surface, and the first The sealing element is annular and has a plurality of through holes corresponding to the plurality of outer ports and the plurality of inner ports.

Further, a plurality of flow passages are provided inside the valve core body, and the flow passages communicate with two of the plurality of inner ports, and the fluid flows into the outer ports, corresponding through holes, and The corresponding inner port passes through the corresponding flow channel, and flows out from the corresponding inner port, the corresponding through hole, and the corresponding outer port sequentially in the axial direction.

Further, the valve cover includes a mounting portion extending into the opening end, a second mounting groove is opened on a side of the mounting portion close to the inner wall of the valve, and a third sealing member is provided in the second mounting groove, and the valve The cover and the valve body are connected through a fixing piece.

Further, a first protruding ring is provided around the rotation shaft on the first axial end surface, and a first protrusion around the rotation shaft is provided between the first axial end surface and the rotation shaft, and the first protrusion The top end of the top is provided with a second protruding part surrounding the rotating shaft, the second seal is placed on the second protruding part, a first placing groove is formed between the first protruding ring and the first protruding part, and the lower The ring body is placed in the first placing groove.

Further, the valve cover also includes a groove in the middle, and a second protruding ring is arranged around the rotation axis in the groove, and a second placement groove is formed between the outer wall of the second protruding ring and the groove, so that The elastic member and the upper ring body are placed in the second placement groove, a third placement groove is formed between the inner wall of the second convex ring and the rotating shaft, and the second sealing member is placed in the third placement groove.

Compared with the prior art, the present invention provides an integrated multi-way water valve, which has the following beneficial effects:

Compared with the method of sealingly connecting the spool and the bonnet in the prior art, the present invention has a longer service life of the connection structure between the spool and the bonnet by setting the end face bearing, and can effectively reduce the driving torque and reduce wear.

Description of drawings

Fig. 1 is a schematic diagram of a longitudinal section structure of an integrated multi-pass water valve of the present invention;

Fig. 2 is a schematic diagram of a transverse cross-sectional structure of a valve core body of the present invention;

Fig. 3 is a schematic diagram of an explosion structure in one direction of an integrated multi-way water valve of the present invention;

Fig. 4 is a schematic diagram of an explosion structure in another direction of an integrated multi-way water valve of the present invention;

Fig. 5 is a structural schematic diagram of an integrated multi-way water valve of the present invention.

Marks in the figure: 1, valve body; 11, open end; 12, outer port; 13, first installation groove; 2 spool; 21, spool body; 211, first axial end face; 212, second axial End face; 213, inner port; 214, flow channel; 215, first convex ring; 216, first placement groove; 217, first protruding part; 218, second protruding part; 22, rotating shaft; 3, valve cover; 31. Installation part; 32. Second installation groove; 33. Second convex ring; 34. Second placement groove; 341. Third protrusion; 35. Third placement groove; 4. End face bearing; 41. Upper ring body ;42, lower ring body; 43, rolling element; 5, elastic element; 51, wave crest; 52, wave trough; 6, first sealing element; 7, second sealing element; .

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and the records of the accompanying drawings. The specific connection methods of each part adopt mature bolts, rivets, welding, etc. in the prior art. Conventional means, machinery, parts and equipment all adopt conventional models in the prior art, plus circuit connections adopt conventional connection methods in the prior art, and will not be described in detail here.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

It should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

The embodiment of the present invention provides an integrated multi-way water valve, referring to Fig. 1 to Fig. 5, including a valve body 1, a valve core 2, a valve cover 3, an end face bearing 4 and an elastic member 5, and the valve core 2 is rotatably arranged on Inside the valve body 1, the valve cover 3 is placed on the top surface of the valve body 1. The valve cover 3 is roughly in the shape of a disc, and the end bearing 4 is arranged between the valve core 2 and the valve cover 3. Through the setting of the end bearing 4, the effective Reduce the driving torque on the spool 2. Compared with the way in the prior art that seals the spool 2 and the bonnet 3 with sealing components, by setting the end bearing 4, the connection between the spool 2 and the bonnet 3 The structure lasts longer.

1 and 3, in this embodiment, the end bearing 4 includes an upper ring body 41 installed on the lower end surface of the valve cover 3, a lower ring body 42 installed on the top surface of the seat valve core 2, and an upper ring body 42 arranged on the upper surface. The rolling member 43 between the ring body 41 and the lower ring body 42, the upper ring body 41 and the lower ring body 42 are coaxially arranged, the rolling member 43 can be a cylindrical roller or a ball, reducing the distance between the valve core 2 and the valve cover 3 The upper ring body 41 and the lower ring body 42 are the two end faces of the end bearing 4, and the upper ring body 41 is located directly above the lower ring body 42; the elastic member 5 is arranged between the upper ring body 41 and the valve cover 3 ; The lower ring body 42 can be embedded in the top surface of the valve core 2 .

Wherein, referring to FIG. 1 , in this embodiment, the valve cover 3 includes a mounting portion 31 extending into the opening end 11, and a second mounting groove 32 is opened on the side of the mounting portion 31 close to the inner wall of the valve body 1, so that The second installation groove 32 is provided with a third seal 9 that connects the valve cover 3 and the valve body 1 in a static sealing manner. Preferably, the third seal 9 is an O-ring made of rubber, preferably an O-shaped seal. The sealing ring is made of EPDM (ethylene propylene diene monomer), and the valve cover 3 and the valve body 1 are connected by a fixing piece 8, preferably, the fixing piece 8 is a screw or a bolt.

3 and 4, in this embodiment, an elastic member 5 is provided between the end bearing 4 and the valve cover 3, the elastic member 5 provides elastic force to press the end bearing 4, and the elastic member 5 can be applied for a long time The downward axial elastic force makes the lower ring body 42 always in contact with the top surface of the valve core 2, and also makes the downward axial force press the first seal 6 through the valve core 2, so that the first seal 6 is better sealed with the valve body 1, and the driving torque of the valve core 2 can be effectively reduced when the valve core 2 is driven.

Wherein, the elastic member 5 is a wave spring, including a plurality of crests 51 and a plurality of troughs 52, wherein a plurality of crests 51 and a plurality of troughs 52 are arranged at intervals one by one, since the valve cover 3 and the valve body 1 are connected by a fixing member 8, due to The valve cover 3 and the valve body 1 do not move, therefore, the axial elastic force of the elastic member 5 can only be downward all the time, the tighter the elastic member 5 is pressed, the more downward axial elastic force provided by the trough 52 pressing the upper ring body 41. large, so that the connection between the end bearing 4 and the valve core 2 can be better, and the sealing performance between the second axial end surface 212 and the top surface of the first sealing member 6 can also be improved. In other embodiments, the elastic member 5 is also Other configurations may be used, such as coil springs.

Referring to Fig. 1, in this embodiment, the valve core 2 includes a cylindrical valve core body 21 and a rotating shaft 22 protruding from the middle of the end face of the valve core body 21, specifically, the valve core 2 can be one piece, or It can be formed by welding the upper and lower parts. In this embodiment, the valve core 2 is formed by welding the upper and lower parts. The rotating shaft 22 runs through the valve cover 3 and extends outward. The rotating shaft 22 is driven by a driver to rotate. , the driver can be a servo motor or a hand wheel, a second seal 7 connected in a dynamic sealing manner is provided between the rotating shaft 22 and the valve cover 3, preferably, the second seal 7 is an X-shaped seal made of rubber Ring, preferably, the X-shaped sealing ring is made of EPDM (ethylene propylene diene monomer), the X-shaped sealing ring is a four-lip seal, and the shape is similar to X. Compared with the O-ring, because the X-shaped sealing ring is between the sealing lips A lubricating cavity is formed, which has small friction resistance and starting resistance.

Referring to Fig. 1, Fig. 3 and Fig. 4, in this embodiment, the spool body 21 includes an opposite first axial end surface 211 and a second axial end surface 212, and the rotating shaft 22 starts from the first axial end surface 211 protrudes in the middle, the end face bearing 4 and the elastic member 5 are arranged between the first axial end face 211 and the valve cover 3, the upper ring body 41 surrounds the rotating shaft 22, and the lower ring body 42 is sleeved on the rotating shaft 22 and connected to the first axial end surface 211, the first sealing member 6 is provided between the second axial end surface 212 and the valve body 1, the elastic member 5 can exert downward axial force for a long time, so that the downward The axial force presses the first sealing member 6 through the valve core 2, so that the sealing connection between the first sealing member 6 and the valve body 1 is better, and when the valve core 2 wears the first sealing member 6, the elastic member 5 The applied resisting force can move the end face bearing 4 and the valve core 2 downward, so that the second axial end face 212 is always in contact with the first seal 6, and the wear is eliminated, so that the sealing performance of the valve is better, and the sealing performance of the valve is improved. Service life, fewer parts are used, in this embodiment, the first seal 6 does not rotate relative to the valve body 1, the first seal 6 is PTFE (polytetrafluoroethylene) and EPDM (ethylene propylene diene monomer) The two materials are pasted together to form a single piece.

Referring to Fig. 1, Fig. 3 and Fig. 4, in this embodiment, the valve body 1 is in the shape of a hollow cylinder with an open end 11, and a plurality of external ports 12 are opened on the lower end surface of the valve body 1. In the present embodiment, there are 9 external ports 12, wherein 2 adjacent external ports 12 have the same size, and the sizes of the other 7 external ports 12 are respectively the sum of the aforementioned 2 adjacent external ports 12 sizes, and the external ports 12 is evenly arranged along the axial end surface, and a plurality of internal ports 213 are opened on the second axial end surface 212. In this embodiment, there are 6 internal ports 213, and the sizes of the 4 internal ports 213 are respectively the aforementioned 2 The sum of the sizes of two adjacent external ports 12, the sizes of the other two internal ports 213 are respectively the sum of the sizes of the aforementioned two internal ports 213, that is, twice the sum of the sizes of the aforementioned two adjacent external ports 12, and in addition The two inner ports 213 are not adjacent, and the first sealing member 6 is annular and has a plurality of through holes 61 corresponding to the plurality of outer ports 12 and the plurality of inner ports 213. In this embodiment, the through holes 61 is 9, and its layout and the size of the through hole 61 are the same as that of the external port 12, that is, the size of two adjacent through holes 61 is the same as that of the aforementioned two adjacent external ports 12, and the other 7 through holes 61 The size of each is the sum of the sizes of the aforementioned two adjacent through holes 61, and the through holes 61 are evenly arranged along the axial end surface.

Referring to Fig. 2, in this embodiment, the valve core body 21 is provided with a plurality of flow passages 214 inside, in this embodiment, there are five flow passages 214, and the flow passages 214 communicate with a plurality of inner ports 213 Two of the inner ports 213, preferably, the two adjacent flow channels 214 are small fan-shaped, the size of which is consistent with the size of the aforementioned two adjacent outer ports 12, and the two non-adjacent flow channels 214 are Large fan-shaped, its size is the sum of the size of the aforementioned two adjacent external ports 12, the fifth flow channel 214 communicates with the flow channels 214 on both sides of the large fan-shaped flow channel 214, and the size of the flow channels 214 on both sides is the same as The aforementioned two adjacent outer ports 12 have the same size, and the fluid flows into the outer port 12, the corresponding through-hole 61, and the corresponding inner port 213 in sequence along the axial direction, and then passes through the corresponding flow channel 214, and flows sequentially in the axial direction. Flow out from the corresponding inner port 213, the corresponding through hole 61, and the corresponding outer port 12. When the valve core 2 rotates at different angles, the switching of the flow channel 214 can be realized, which makes the valve more applicable and has a wider application range. , as shown by the dotted line with arrows in FIG. 1 , where the dotted line with arrows represents the schematic flow direction of the fluid in the valve.

It can be seen that, the design of the valve in this embodiment that the port for fluid is arranged at the axial end makes the valve more compact in structure, smaller in size and lower in cost. In addition, since the inner port 213 and the outer port 12 are both arranged on the end surface of the valve core 2 or the valve body 1 , that is, on a plane, it is convenient for the first sealing member 6 to seal the inner port 213 and the outer port 12, thereby further improving reliability.

1, 3 and 4, in this embodiment, the first axial end surface 211 is provided with a first protruding ring 215 surrounding the rotating shaft 22, and the first protruding ring 215 protrudes from the first axial end surface 211. On the surface, between the first axial end surface 211 and the rotating shaft 22, a first protruding portion 217 surrounding the rotating shaft 22 is provided, and the top end of the first protruding portion 217 is provided with a second protruding portion 218 surrounding the rotating shaft 22 , the first protruding portion 217 and the second protruding portion 218 are annular, and the radius of the first protruding portion 217 is larger than that of the second protruding portion 218, and the first protruding portion 217 and the second protruding portion 218 are part of the rotating shaft 22, The second seal 7 is placed on the second protruding portion 218, a first placement groove 216 is formed between the first protruding ring 215 and the first protruding portion 217, and the lower ring body 42 is placed on the first placement In the groove 216 , due to the pressing force of the elastic member 5 , there is no relative sliding between the lower ring body 42 and the valve core 2 .

Referring to Fig. 1, Fig. 3 and Fig. 4, in this embodiment, the valve cover 3 also includes a groove located in the middle, the groove is located at the axial lower end of the valve cover 3, and the rotation axis 22 is surrounded by the groove A second protruding ring 33 is provided. The second protruding ring 33 protrudes from the top surface of the groove, and the second protruding ring 33 has the same depth as the groove. The second protruding ring 33 is located directly above the first protrusion 217 and does not The second protruding part 218 contacts, and a second placement groove 34 is formed between the outer wall of the second protruding ring 33 and the groove. The outer wall of the second protruding ring 33 is the side wall of the rotating shaft 22, away from the elastic member 5 and the upper The ring body 41 is placed in the second placement groove 34, and the elastic member 5 and the upper ring body 41 do not slide relative to each other in the second placement groove 34, specifically, the second placement groove 34 is located directly above the first placement groove 216 , a third placement groove 35 is formed between the inner wall of the second protruding ring 33 and the rotating shaft 22, the inner wall of the second protruding ring 33 is a side wall close to the rotating shaft 22, and the second sealing member 7 is placed in the third placement In the groove 35, the second sealing member 7 is in contact with the inner wall of the second convex ring 33, the second protrusion 218, the outer wall of the rotating shaft 22 and the top surface of the groove to realize a dynamic sealing connection, and when the rotating shaft 22 rotates, the second The sealing member 7 is relatively stationary with the valve cover 3, that is, does not rotate.

Wherein, referring to FIG. 1 , a third protruding portion 341 is provided in the second placement groove 34, and the third protruding portion 341 is connected with the outer wall of the second protruding ring 33, and the top surface of the upper ring body 41 is in contact with the bottom surface of the third protruding portion 341. The elastic part 5 is placed between the side walls of the three protrusions 341 and the groove, which makes the design of the valve more reasonable.

When the valve core 2 rotates, the lower ring body 42 connected to it also rotates together, thereby driving the rolling member 43 to rotate, the upper ring body 41 and the valve cover 3 remain stationary, and the rolling member 43 rotates to reduce the contact between the valve core 2 and the valve cover. 3, the end face bearing 4 is under the action of the elastic member 5, and the elastic member 5 can exert downward axial elastic force for a long time, so that the connection between the valve cover 3 and the valve core 2 is maintained, and the downward axial force The elastic force presses the first sealing member 6 through the valve core 2, so that the sealing connection between the first sealing member 6 and the valve body 1 is better, so that the sealing performance of the valve is better, and fluid leakage is prevented.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

The above examples are only used to illustrate the technical solution of the present invention, but not to limit the protection scope of the invention. Apparently, the described embodiments are only some, not all, embodiments of the present invention. Based on these embodiments, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above-mentioned embodiments, those skilled in the art can still combine, add, delete, or make other adjustments to the features in the various embodiments of the present invention according to the situation without any conflicts. Thereby, other technical solutions that are different and do not deviate from the conception of the present invention in essence are obtained, and these technical solutions also belong to the protection scope of the present invention.

Claims (10)

1. An integrated multi-pass water valve, comprising:

a valve body (1);

the valve core (2) is rotatably arranged in the valve body (1);

the valve cover (3) is arranged on the top surface of the valve body (1);

and the end face bearing (4) is arranged between the valve core (2) and the valve cover (3).

2. The integrated multi-way water valve according to claim 1, wherein the end face bearing (4) comprises an upper ring body (41) mounted on the lower end face of the valve cover (3), a lower ring body (42) mounted on the top face of the seat valve core (2), and a rolling element (43) arranged between the upper ring body (41) and the lower ring body (42), and the upper ring body (41) and the lower ring body (42) are coaxially arranged.

3. The integrated multi-way water valve according to claim 2, characterized in that an elastic member (5) is arranged between the end face bearing (4) and the valve cover (3), and the elastic member (5) provides elasticity to press against the end face bearing (4).

4. An integrated multi-way water valve according to claim 3, characterized in that the valve core (2) comprises a cylindrical valve core body (21) and a rotating shaft (22) protruding from the middle of the end face of the valve core body (21), the rotating shaft (22) penetrates the valve cover (3) and extends outwards, and a second sealing piece (7) is arranged between the rotating shaft (22) and the valve cover (3).

5. The integrated multi-way water valve according to claim 4, wherein the valve core body (21) comprises a first axial end surface (211) and a second axial end surface (212) which are opposite, the rotating shaft (22) protrudes from the middle of the first axial end surface (211), the end surface bearing (4) and the elastic piece (5) are arranged between the first axial end surface (211) and the valve cover (3), the upper ring body (41) surrounds the rotating shaft (22), the lower ring body (42) is sleeved on the rotating shaft (22) and connected to the first axial end surface (211), and a first sealing piece (6) is arranged between the second axial end surface (212) and the valve body (1).

6. The integrated multi-way water valve according to claim 5, wherein the valve body (1) is in a hollow cylindrical shape with an opening end (11), a plurality of outer ports (12) are formed on the lower end surface of the valve body (1), a plurality of inner ports (213) are formed on the second axial end surface (212), and the first sealing member (6) is in a circular ring shape and has a plurality of through holes (61) corresponding to the plurality of outer ports (12) and the plurality of inner ports (213).

7. The integrated multi-way water valve according to claim 6, wherein a plurality of flow channels (214) are provided inside the valve body (21), the flow channels (214) are communicated with two inner ports (213) of the plurality of inner ports (213), and fluid flows into the outer port (12), the corresponding through hole (61), and the corresponding inner port (213) in sequence in the axial direction, flows out of the corresponding inner port (213), the corresponding through hole (61), and the corresponding outer port (12) in sequence in the axial direction through the corresponding flow channels (214).

8. The integrated multi-way water valve according to claim 6, wherein the valve cover (3) comprises a mounting portion (31) extending into the opening end (11), a second mounting groove (32) is formed in one side, close to the inner wall of the valve body (1), of the mounting portion (31), a third sealing element (9) is arranged in the second mounting groove (32), and the valve cover (3) is connected with the valve body (1) through a fixing element (8).

9. The integrated multi-way water valve according to claim 8, wherein a first convex ring (215) is arranged on the first axial end surface (211) around the rotating shaft (22), a first protruding part (217) surrounding the rotating shaft (22) is arranged between the first axial end surface (211) and the rotating shaft (22), a second protruding part (218) surrounding the rotating shaft (22) is arranged at the top end of the first protruding part (217), the second sealing element (7) is placed on the second protruding part (218), a first placing groove (216) is formed between the first convex ring (215) and the first protruding part (217), and the lower ring body (42) is placed in the first placing groove (216).

10. The integrated multi-way water valve according to claim 9, wherein the valve cover (3) further comprises a groove in the middle, a second convex ring (33) is arranged in the groove around the rotating shaft (22), a second placing groove (34) is formed between the outer wall of the second convex ring (33) and the groove, the elastic piece (5) and the upper ring body (41) are placed in the second placing groove (34), a third placing groove (35) is formed between the inner wall of the second convex ring (33) and the rotating shaft (22), and the second sealing piece (7) is placed in the third placing groove (35).

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